3.1.1 z = +/- sqrt(3) i

3.1.2 a. -9 + 9i b. 56 + 33i c. 4 + 36i d. 112/169

3.1.3 a. 7 b. 3/34 + 5i/34

3.1.4 a. 0 b. 0 c. 8 + 4i

3.1.5 -i/2

3.1.6 a. 6 + 3i b. 14/123 + i/41 c. 74/25 – 18i/25

3.1.7 2, 0, -2

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